Home / 2,275.47-3,413.20-1,255.95

Finding the Fourth Proportional to 2,275.47, 3,413.20 and 1,255.95

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Solution

The fourth proportional to 2,275.47, 3,413.20 and 1,255.95 is: 1,883.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.47 : 3,413.20 = 1,255.95 : x
  2. Step 2: Convert to fraction form
    2,275.47/3,413.20 = 1,255.95/x
  3. Step 3: Cross multiply
    2,275.47x = 3,413.20 × 1,255.95
  4. Step 4: Simplify right side
    2,275.47x = 4,286,808.54
  5. Step 5: Solve for x
    x = 4,286,808.54/2,275.47
  6. Step 6: Final answer
    x = 1,883.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.